What kind of battery is needed for a diesel engine and why

Compared to a gasoline engine, a diesel engine has a number of features that determine the requirements for the battery. Let's consider them briefly.

For starters: here are some tips on which battery is best for a diesel car https://carnesmechanical.com/batteries-for-diesel-trucks/

1) Starting current. This is one of the main parameters that determine the ability of the battery to crank the crankshaft with the starter. The starting current shows how much electricity the battery can deliver per unit of time. The higher this indicator, the more actively the starter rotates the crankshaft.

2) Capacity. This parameter shows how long the battery is able to supply the starter with enough power to rotate the crankshaft. On new cars with new engines, a working power system and minimal wear of the piston group, you can limit yourself to a small battery capacity. If there are problems with starting, it is better to choose a battery with a larger capacity than the car manufacturer recommends.

3) Terminal type. There are Asian (thin) and European (thick) terminals. In the former, the diameter of the positive terminal is 12.7 mm, in the negative terminal - 11.1 mm. The European type has 19.5 mm and 17.9 mm, respectively.

4) Standard size. Conventionally, in terms of shape and dimensions, all batteries for cars are divided into 3 types: European, Asian and American. Asian batteries are narrow and tall. American and European batteries have a more squat shape, their horizontal linear dimensions often exceed the height.

5) Polarity. This parameter determines the location of the positive and negative terminals on the battery. Distinguish between direct and reverse polarity of the battery. Direct polarity is the arrangement of the battery terminals so that when looking at its front side, the positive terminal will be on the left; accordingly, with reverse polarity it will be on the right.